[QUOTE=cyman73]So can I use a 2002-05 4.6 motor in my 1998 F150?
1998 - 2003 5.4L or 4.6L
If you get a PI , it's to your benefit , but you will need a tune for it to rune correctly.
There 's a little more work in hooking a 5.4 up , but it's not bad..So you can consider both..
You have to make sure you get the whole motor - intake, everything..
Are the PI heads compatible with the non-PI head intake and exhaust manifold? no
Last edited by jbrew; 01-04-2007 at 03:23 PM.